US Patent 7528217 Polymers and fibers formed therefrom

Patent 7528217 was granted and assigned to E.I. Du Pont De Nemours And Company on May, 2009 by the United States Patent and Trademark Office.

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Date of Patent

May 5, 2009

Patent Application Number

11544118

Date Filed

October 6, 2006

Patent Primary Examiner

Patent abstract

Sulfonated polyoxadiazole polymers containing groups selected from:

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